多項式的運算
Authored by Charles Lam
Mathematics
7th Grade
Used 9+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪個多項式包含異類項？
6x + 6x
7x + 7x2
8x2 – 4x2
3xy – 5xy
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
化簡 (4x2)(x3)。
4x5
4x6
5x5
5x6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(5x + 9) + (3x – 7)
下一步可以寫成哪項？
5x + 9 + 3x – 7
5x + 9 + 3x ＋ 7
5x + 9 – 3x – 7
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(x + 1)(x2 – x + 6)
下一步可以寫成以下哪項？
(x2)(6x)
(x)(x2 – x + 6) + 1
(x)(x2 – x + 6) + (1)(x2 – x + 6)
(x)(x2 – x + 6) – (1)(x2 – x + 6)
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(4x – 3)(6x) + 7x
下一步可以寫成以下哪項？
(x)(6x) + 7x
24x2 – 6x + 7x
24x2 – 18x + 7x
24x – 18x + 7x
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列哪個多項式的各項是按 x 的升冪次序排列的？
3x2 + 5x + 4
5x + 3x2 + 4
3x2 + 4 + 5x
4 + 5x + 3x2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(3x4 – 5x2 + 1) – (1 + 6x2) – (x4 + 2x)
下一步可以寫成哪項？
3x4 – 5x2 + 1 – 1 + 6x2 – x4 + 2x
3x4 – 5x2 + 1 – 1 – 6x2 – x4 + 2x
3x4 – 5x2 + 1 – 1 – 6x2 – x4 – 2x
3x4 – 5x2 + 1 – 1 + 6x2 + x4 – 2x
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